National mourning has been declared in Serbia after a rescue helicopter crashed while carrying a newborn baby for medical treatment, with the loss of all seven people aboard, the BBC reported on Sunday.
The helicopter came down in heavy fog while trying to land in the capital Belgrade on Friday night.
Four crew members and two medical workers were also on the aircraft.
As mourning was declared, Defense Minister Bratislav Gasic said the army had lost its best helicopter pilots.
The helicopter had been called out after an ambulance carrying the baby was blocked by a mudslide about 200km south of Belgrade.
The five-day-old baby was being rushed for treatment after developing life-threatening respiratory problems.